[R-390] Field Change No. 7, R390A

[Al Parker]

Hi Tom's (W & B), and all,
    Well, I'm glad it's "mostly working."  I know you've been at it for a
long time.  My Motorola 390A is also mostly working, sitting up on end on
the bench, being listened to some, awaiting aome real attention.  I guess,
being Motorola, the PTO probably doesn't have FC7, a good thing, from
others' comments.  Will be waiting for some more pix of yours, completed, at
Shelby.
    I've been working on SP-600's lately, just finished one for a friend,
got another for myself in payment.
73,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
http://www.thecompendium.net/radio/
http://www.hammarlund.info

----- Original Message -----
From: "Tom Warren" <wwarren1@nc.rr.com>

> My reason for asking is that I'm working on a Motorola PTO with the 56K
> screen resistor and a later Cosmos PTO with the 220K screen resistor and
> wondering if I ought not to "re-convert" the Cosmos PTO to have a 56K
screen
> resistor.  R701, R702, and R703 are out of spec on the Cosmos anyhow, so I
> will probably change them out, but if a better choice for R702 is 56K
> considering that I'm not worried about the enemy direction finding on my
> oscillator outputs, then maybe that's what I ought to do.
>
> For Tom Bridgers and Al Parker, yes, the Motorola PTO is from the Charlie
> Taylor (hello Charlie, if you're out there) 390A.  AND I'VE GOT THE
CHARLIE
> 390A MOSTLY WORKING. HOORAY AFTER ABOUT TWO YEARS.
>
> Tom, W4PG